Find the sum. Add horizontally.(5x2 - 7) + (2x2 - 3)
A. -3x2
B. -3
C. 7x2 - 10
D. 7x2 + 10
Answer: C
Mathematics
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Solve the problem.Solve for a: 
A. a = 
B. a = 4
C. a = 2
D. a = 
Mathematics
Solve the differential equation.cos x 
+ y sin x = sin x cos x
A. y = cos x ln 
+ c cos x
B. y = sin x ln 
+ c sin x
C. y = cos x ln 
+ c cos x
D. y = cot x + c cos x
Mathematics
Solve the problem.If you toss five fair coins, in how many ways can you obtain at least one head?
A. 16 B. 32 C. 31 D. 15
Mathematics
For the functions f(x) and g(x), determine the domain of (f - g)(x) (the difference of f and g).f(x) = 
, g(x) = 
A. {x ? x is a real number} B. {x ? x is a real number and x ? 3 and x ? 2} C. {x ? x is a real number and x ? 3} D. {x ? x is a real number and x ? -3 and x ? -2}
Mathematics